package com.hnayan.websocketexample.interceptor;

import com.hnayan.websocketexample.dto.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by hnayan on 2017/8/10.
 */
@Component
class SimpleLoginInterceptor implements HandlerInterceptor {
    private static final Logger logger = LoggerFactory.getLogger(SimpleLoginInterceptor.class);
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        boolean isLogin;
        User user = (User) httpServletRequest.getSession().getAttribute("user");
        if (null == user) {
            httpServletResponse.sendRedirect("/login");
            isLogin = false;
        } else {
            isLogin = true;
        }
        return isLogin;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
